3. The weir should have the slope for about 20 - 4 5 degrees, both front and back, no ควรสร้าง dam with face cut. 9. Degrees
4.Construction will create a. Step periodic phase depends on the area. About 50 - 200 meters. 4. The construction budget, we almost none. Just let's take stone to yuusuke Baraka is along the canal to rearrange.If no stone. We will use a punching bag.
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